mediastine definition

March 16, 2018 AZ Dictionary

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noun:

mediastinum

A partition; a septum; particularly, the folds associated with pleura (and area included between them) which separate the thorax into the right and remaining hole. The room included between these folds of the pleura, labeled as the mediastinal area, offers the heart and provides passageway towards the esophagus and great bloodstream.